On Fri, 16 Aug 2019 17:15:05 +0200 Cornelia Huck <cohuck@xxxxxxxxxx> wrote: > Usually, the common I/O layer logs various things into the s390 > cio debug feature, which has been very helpful in the past when > looking at crash dumps. As vfio-ccw devices unbind from the > standard I/O subchannel driver, we lose some information there. > > Let's introduce some vfio-ccw debug features and log some things > there. (Unfortunately we cannot reuse the cio debug feature from > a module.) > > Signed-off-by: Cornelia Huck <cohuck@xxxxxxxxxx> > --- > drivers/s390/cio/vfio_ccw_drv.c | 50 ++++++++++++++++++++++++++-- > drivers/s390/cio/vfio_ccw_fsm.c | 51 ++++++++++++++++++++++++++++- > drivers/s390/cio/vfio_ccw_ops.c | 10 ++++++ > drivers/s390/cio/vfio_ccw_private.h | 17 ++++++++++ > 4 files changed, 124 insertions(+), 4 deletions(-) Queued.
